Preliminary research

Open Build Service, one year later: command execution through Mercurial argument injection

Maxime Rinaudo · Fenrisk · 2 October 2026

AI-collected research leads through 3 November 2026, including a November–October–September missed-article review and a targeted multilingual search alongside earlier community-source sweeps. Unranked, incomplete, not community-vetted, and subject to change.

Explains how a space-containing revision passes an OBS Python wrapper as one value, then becomes a Mercurial configuration option that executes a hook. Provides the process trace, clone/cache prerequisites and fix, extending a bug publicly patched in July with a practical parser-boundary case study.

Record

Researcher

Maxime Rinaudo

Published by

Fenrisk

Date

2 October 2026

In the archive

• Collected in the 2026 preliminary research sweep

Related sources

• July patch

Tags

• argument-injection
• parser-differential
• mercurial
• python
• build-system
• supply-chain
• case-study
• owasp-a03-2021
• owasp-a06-2021

This page is the archive's own catalogue record. The research is the work of Maxime Rinaudo, first published at the original source. Preserved copies are kept so the citation survives its host.